Question

why do substance produce flame of different colours​

Answer 1

Answer:

☺️☺️

When you heat an atom, some of its electrons are "excited* to higher energy levels. When an electron drops from one level to a lower energy level, it emits a quantum of energy. ... The different mix of energy differences for each atom produces different colours. Each metal gives a characteristic flame emission spectrum.

Answer 2

Answer:

copper,lithium,calcium,sodium and barium